The maximum value of the efficiency varies with the size and make of the pump and it may range from . . . . . . . . for small pumps.
A. 50
B. 60
C. 70
D. 80
Answer: Option C
This Question Belongs to Mining Engineering >> Mining Machinery
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Coal cutting machine ropes are . . . . . . . . wire rope core.
A. Fibre
B. Steel strand core
C. Independent wire rope
D. All
The joining of ropes is termed as . . . . . . . .
A. Rope stitching
B. Rope splicing
C. Rope Stretching
D. Rope volcanizing
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